The Aero M5 is a DPMS high profile (0.210) tang. This handguard will be compatible height wise, but users have reported the anti-rotation tabs needing to be modified.
No, DPMS G2 thread is a little smaller then G1.
It is for high profile.
Yes, they are on the 15" and 12.5".
The thread is 1-7/16, 16.
Yes, these Presma AR .308 DPMS M-LOK Slim Free Float Handguards should work with a Grey Ghost AR10 if the Grey Ghost AR10 is a DPMS Pattern rifle.
The Presma AR .308 DPMS M-LOK Slim Free Float Handguard uses anti rotation tabs designed for high profile DPMS rifles. You can get a new upper if you'd like, a high profile DPMS upper, or pick up a different handguard that does not utilize the anti rotation tabs.
No, most .458 SOCOM receivers are 5.56 style with an opened up ejection port. Handguards are not compatible between ar15 and ar10/.308.
Please contact the manufacturer as they do not make this information available.